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      <a class="nav-link" data-bs-toggle="tab" href="#specifications">规格与包装</a>
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      <a class="nav-link" data-bs-toggle="tab" href="#sales">售后保障</a>
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      <a class="nav-link" data-bs-toggle="tab" href="#evaluate">商品评价</a>
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    <div class="tab-pane active" id="introduce">商品介绍</div>
    <div class="tab-pane" id="specifications">规格与包装</div>
    <div class="tab-pane" id="sales">售后保障</div>
    <div class="tab-pane" id="evaluate">商品评价</div>
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